Question

sin theta=2/7 find cosec theta if tan theta=2/5 find cos theta​

Answer 1

Step-by-step explanation:

sin theta =2/7

cosec theta is reciprocal of sin

cosec theta = 7/2

tan theta =2/5

(perpendicular)/(base)=2/5

by pt

(h)^2=p^2+b^2

h^2= 4k^2+25k^2

h^2= 29k^2

h=✓29k

cos theta = base/hypotenuse

5k/✓29k

5/✓29